How do I setup ip masquerade in suse 8

cmisip · 11-10-2002, 10:21 AM

I am using suse firewall 2. Dhcpd is working but my internal network has no access to the internet. I have enabled this on the Yast2 -- > security --> Firewall but it does not seem to work. Also when I boot Suse, I see the line saying ipforwarding disabled. Thanks for any help.

acid_kewpie · 11-10-2002, 11:00 AM

try reading this one

http://www.linuxquestions.org/questi...829#post166829

turnip · 11-10-2002, 12:48 PM

the command

echo 1 > /proc/sys/net/ipv4/ip_forward will turn on ip forwarding
then you need something like

iptables -t nat -A POSTROUTING -i <interface> -s <source network/mask> -j MASQUERADE , that will just get you on the net,
you're gonna need some blocking rules too

so maybe

iptables -A INPUT -s <mynetwork/24> -j ACCEPT
then
iptables -P INPUT DROP

cmisip · 11-10-2002, 09:14 PM

where do I put this? Thanks

cmisip · 11-13-2002, 03:34 PM

Success !!
I did not have named running. When I enabled it as well as dynamic IP patch and ip forwarding, the SuseFirewall2 allowed IP masquerading. Thanks